Allow me to join "the 457 love-fest." This is my favorite in .45.
It just fits my hand nicely and it doesn't beat up my shooting hand.

My 4566 on the other hand ends up bruising the web of my shooting hand if I fire more than one mag through it. Admittedly part of the problem is simply the tendency to bruise easily as one ages. Consequently I have to glove up to shoot it.